Just stumbled across this deal on the Rosewill RSV-L4500 Server Case for $79.99.
$99.99 - $20 off w/ promo code 1015HALLOWEEN33, ends 10/21, free shipping.http://www.newegg.com/Product/Product.aspx?Item=N82E16811147164
I use this case for my server. Nothing fancy, but it's a quality case.
I've swapped out the (6) 120mm case fans, and put in CoolerMasters, and also added (2) Antec 80mm's in the rear.
The support bar in the middle of the case is thick, but slotted to help with cable management.
Holds 15 drives as-is.
One caveat might be that there's not really a spot for ODD's (I used a USB DVD drive to install the OS).
You can add Hot Swap cages if you want. Rosewill makes a 4 drive cage that you can add as you go.
Minor QC issue as I also had to swap the Power and Reset connectors as they were backwards (from what I've read it's common in these cases) - Easy fix.
Overall it's a great value if you are looking to build a server that can hold a bunch of drives.